Speeding Up Large Platform Modeling and Simulation
EMA speeds up modeling and simulation of large platforms like never before. The finite-difference time-domain (FDTD) solver in Ansys EMC Plus and Ansys Charge Plus empowers users to solve bigger problems, delivering higher-quality products at lower costs in less time.
EMA recently broke an internal recording by running a simulation on a model containing 1.6 billion elements! The simulation analyzed ESD, radiated emissions, and radiated susceptibility for a PCB with cables.
“This type of simulation didn’t seem like it would be possible even just a couple years ago,” Soldwisch said.
What are EMC Plus and Charge Plus?
EMC Plus
EMC Plus is a platform-level electromagnetic modeling and simulation tool that delivers design-to-validation capability for EMC.
EMC Plus key features/ solutions:
- Model cables, harnesses, connectors, chassis, shields
- Radiated emissions/ susceptibility
- Conducted emissions/ susceptibility
- Shielding effectiveness
- Electromagnetic environmental effects (EMP, HIRF, lightning)
- EMI/EMC
- Cable to RF system coupling
Fig. 1. Ansys EMC Plus application areas
Charge Plus
Charge Plus offers a unique combination of electromagnetic, fluid, and particle physics solvers for multiphysics electromagnetic simulation.
Charge Plus key features/ solutions:
- ESD simulation in air
- Surface charging in low and high energy plasma environments
- Internal charging of solid materials from high-energy particle fluxes
- Coupled charging, solve 3D electric fields from surface charging
- Dielectric breakdown of solid materials
- Predicts charge accumulation on space platforms
- Triboelectric effects using integration with Ansys Rocky
- PECVD
- Ray-tracing, radiation hardening
Fig. 2. Ansys Charge Plus application areas
Both software solutions are bundled with Ansys Discovery and integrate with a number of other Ansys tools.
GPU Support
GPU acceleration enables users to simulate these large models in EMC Plus and Charge Plus.
Soldwisch explains that doubling the size of a simulation domain in FDTD increases the total simulation time by a factor of eight because the domain’s volume, which scales cubically.
Soldwisch highlights that new hardware, such as NVIDIA GH200 GPUs, handles dozens of gigabytes of RAM on a single chip. He also emphasizes how new cloud compute capabilities accelerate simulation times further.
“We’re going to be able to solve problems in the next several years that don’t even appear to be possible right now,” he said. “I truly believe that these capabilities enable EMC Plus and Charge Plus to handle gigantic problems that no other software can, and we’re excited to be at the forefront of that.”
Fig. 3. NVIDIA GH200 GPU. Courtesy: NVIDIA
Start Simulating Now
EMA consultants are available to support any simulation you may need to perform. We help mitigate problems and avoid unnecessary testing. Reach out to EMA directly here.
If you are interested in performing your own simulations, Ansys exclusively sells EMC Plus and Charge Plus. Contact your Ansys sales representative for more information.
